Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Luminance Characteristics of Organic Electroluminescent Devices Based on Znq12 by Heating

열처리된 Znq2에 기초한 유기 EL소자의 발광특성

  • 조성렬 (충북대학교 공과대학 공업화학과) ;
  • 정은실 (단국대학교 재료공학과) ;
  • 박수길 (충북대학교 공과대학 공업화학과) ;
  • 정평진 (단국대학교 재료공학과)
  • Published : 1999.06.01
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Abstract

The 8-hydroxyquinoline Zinc(Znq2) were prepared successfully from zinc chloride and zinc acetate as two kinds of starting material. The organic electroluminescent devices(ELDs) were fabricated by the structure of ITO/TPD/Znq2/Al with N-N'-diphenyl-N-N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine(TPD) which acts hole trasporting layer and bis(8-oxyquinolino) zinc(II)(Znq2) which acts as emission and electron transporting layer. EL efficiency of Znq2 prepared by heating was investigated. The 570nm of main emission peak which is yellowich green was investigated by photo luminesence(PL) and this results shows that electro luminescence(EL) is from Znq2. The V-J curve shows that carrier injection were investigated from 4V. Maximum luminance and luminance efficiency were 1600cd/$\m^2$, 0.9lm/W. From this results, the Znq2 can be one of the useful organic EL material.

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